
10-30×50 Monocular Telescope Adjustable BAK4 FMC Coated Handheld Bird Watching Smartphone
10-30×50 Monocular Telescope Adjustable BAK4 FMC Coated Handheld Bird Watching Smartphone Specifications: Color Black Magnification 10x-30x Objective Lens Diameter 50mm Prism Type Bak-4 Focus System Center Field Angle 2.4 Degree- 1.9 Degree Exit Pupil 5mm - 1.7mm Exit Relief 16mm - 16.5mm Lens Coating Fully Multi-coated Eye Cup Twist-up Close Focusing Distance 3m/9.8ft Waterproof Yes Field of View 126ft/1000 yds; 42mm/1000m - 99ft/1000 yds; 33mm/1000m Net Weight 16.5oz/468g Dimensions 7.6x2.9x2.4in/193x75x61mm Features: Fully waterproof and fog proof prevents moisture, dust, and debris from getting inside the monocular - designed to inhibit internal fogging. 50mm multi-coated objective lens provides bright and clear views. Fully multi-coated optics to enhance image quality. The rubber eyecup easily twists up/down for use with spectacles. Long eye relief and adjustable eyecup f